ASN AS18443 is an Autonomous System Number used to identify a network for BGP internet routing.

Who manages ASN AS18443?

AS18443 is listed under Alyeska Pipeline Service Company.

What do peers, upstreams, and downstreams mean in ASN data?

Peers are lateral network interconnections, upstreams are transit providers, and downstreams are customer networks receiving connectivity.

What are routes and IP ranges for an ASN?

Routes and IP ranges are the network prefixes announced by the ASN on the internet and show the address space it originates.

Why is WHOIS data shown for an ASN?

WHOIS data provides registration and contact context for ASN ownership, administration, and operational reference.

How can I access the full ASN tables?

The page shows a preview of large ASN datasets. Use the page controls to load more rows, and upgrade to a paid plan for complete access.

AS18443 Alyeska Pipeline Service Company

ASN Lookup Tool

Alyeska Pipeline Service Company alyeska-pipeline.com

US 4 Routes

AS Data

AS18443

AS18443 – Alyeska Pipeline Service Company

AS Number	18443
AS Name	APSC
Organization	Alyeska Pipeline Service Company(aps-37)
Country	US
Website	alyeska-pipeline.com
Number of IPv4 Routes	4
Number of IPv6 Routes	0
ASN type	BUSINESS
Registry	ARIN
Date Allocated	2006-11-15

ASN Intelligence API for production workflows

Use ASN data for AS18443 in automation: routing intelligence, peering analysis, ownership checks, and network observability.

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IP Ranges

Route	Origin	Origin Name	ISP	# IPs
151.169.97.0/24	AS18443	Alyeska Pipeline Service Company	Alyeska Pipeline Service Company	256
151.169.28.0/23	AS18443	Alyeska Pipeline Service Company	Alyeska Pipeline Service Company	512
151.169.241.0/24	AS18443	Alyeska Pipeline Service Company	Alyeska Pipeline Service Company	256
151.169.240.0/24	AS18443	Alyeska Pipeline Service Company	Alyeska Pipeline Service Company	256

Raw Whois Response

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#


ASNumber:       18443
ASName:         APSC
ASHandle:       AS18443
RegDate:        2006-11-15
Updated:        2012-03-02
Comment:        http://alyeska-pipeline.com    
Ref:            https://rdap.arin.net/registry/autnum/18443


OrgName:        Alyeska Pipeline Service Company
OrgId:          APS-37
Address:        PO Box 196660 MS 564
City:           Anchorage
StateProv:      AK
PostalCode:     99519
Country:        US
RegDate:        1991-08-07
Updated:        2019-11-22
Comment:        http://www.alyeska-pipeline.com
Ref:            https://rdap.arin.net/registry/entity/APS-37


OrgDNSHandle: NSP8-ARIN
OrgDNSName:   Network Services Primary
OrgDNSPhone:  +1-480-263-3020 
OrgDNSEmail:  networks@alyeska-pipeline.com
OrgDNSRef:    https://rdap.arin.net/registry/entity/NSP8-ARIN

OrgNOCHandle: NSP8-ARIN
OrgNOCName:   Network Services Primary
OrgNOCPhone:  +1-480-263-3020 
OrgNOCEmail:  networks@alyeska-pipeline.com
OrgNOCRef:    https://rdap.arin.net/registry/entity/NSP8-ARIN

OrgTechHandle: NSP8-ARIN
OrgTechName:   Network Services Primary
OrgTechPhone:  +1-480-263-3020 
OrgTechEmail:  networks@alyeska-pipeline.com
OrgTechRef:    https://rdap.arin.net/registry/entity/NSP8-ARIN

OrgAbuseHandle: NSP8-ARIN
OrgAbuseName:   Network Services Primary
OrgAbusePhone:  +1-480-263-3020 
OrgAbuseEmail:  networks@alyeska-pipeline.com
OrgAbuseRef:    https://rdap.arin.net/registry/entity/NSP8-ARIN

OrgRoutingHandle: NSP8-ARIN
OrgRoutingName:   Network Services Primary
OrgRoutingPhone:  +1-480-263-3020 
OrgRoutingEmail:  networks@alyeska-pipeline.com
OrgRoutingRef:    https://rdap.arin.net/registry/entity/NSP8-ARIN

RAbuseHandle: NSP8-ARIN
RAbuseName:   Network Services Primary
RAbusePhone:  +1-480-263-3020 
RAbuseEmail:  networks@alyeska-pipeline.com
RAbuseRef:    https://rdap.arin.net/registry/entity/NSP8-ARIN

RTechHandle: NSP8-ARIN
RTechName:   Network Services Primary
RTechPhone:  +1-480-263-3020 
RTechEmail:  networks@alyeska-pipeline.com
RTechRef:    https://rdap.arin.net/registry/entity/NSP8-ARIN

RNOCHandle: NSP8-ARIN
RNOCName:   Network Services Primary
RNOCPhone:  +1-480-263-3020 
RNOCEmail:  networks@alyeska-pipeline.com
RNOCRef:    https://rdap.arin.net/registry/entity/NSP8-ARIN


#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/resources/registry/whois/tou/
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/registry/whois/inaccuracy_reporting/
#
# Copyright 1997-2026, American Registry for Internet Numbers, Ltd.
#

Parsed Whois Response

Peers

AS Number	Description	Country
AS7782	Alaska Communications Systems Group, Inc.	US
AS21528	AlasConnect Inc.	US
AS8047	GENERAL COMMUNICATION, INC.	US

Upstreams

AS Number	Description	Country
AS7782	Alaska Communications Systems Group, Inc.	US
AS21528	AlasConnect Inc.	US
AS8047	GENERAL COMMUNICATION, INC.	US